JPS612496A - ハウリング抑圧装置 - Google Patents

ハウリング抑圧装置

Info

Publication number
JPS612496A
JPS612496A JP12306484A JP12306484A JPS612496A JP S612496 A JPS612496 A JP S612496A JP 12306484 A JP12306484 A JP 12306484A JP 12306484 A JP12306484 A JP 12306484A JP S612496 A JPS612496 A JP S612496A
Authority
JP
Japan
Prior art keywords
howling
output
section
low
pass filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12306484A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0586719B2 (enrdf_load_stackoverflow
Inventor
Satoru Ibaraki
茨木　悟
Hiromoto Furukawa
博基 古川
Hiroyuki Naono
博之 直野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12306484A priority Critical patent/JPS612496A/ja
Priority to US06/719,740 priority patent/US4747132A/en
Publication of JPS612496A publication Critical patent/JPS612496A/ja
Publication of JPH0586719B2 publication Critical patent/JPH0586719B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/21—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a set of bandfilters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP12306484A 1984-04-09 1984-06-15 ハウリング抑圧装置 Granted JPS612496A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12306484A JPS612496A (ja) 1984-06-15 1984-06-15 ハウリング抑圧装置
US06/719,740 US4747132A (en) 1984-04-09 1985-04-03 Howling canceller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12306484A JPS612496A (ja) 1984-06-15 1984-06-15 ハウリング抑圧装置

Publications (2)

Publication Number Publication Date
JPS612496A true JPS612496A (ja) 1986-01-08
JPH0586719B2 JPH0586719B2 (enrdf_load_stackoverflow) 1993-12-14

Family

ID=14851301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12306484A Granted JPS612496A (ja) 1984-04-09 1984-06-15 ハウリング抑圧装置

Country Status (1)

Country Link
JP (1) JPS612496A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004200883A (ja) * 2002-12-17 2004-07-15 Toa Corp ハウリング抑制装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004200883A (ja) * 2002-12-17 2004-07-15 Toa Corp ハウリング抑制装置

Also Published As

Publication number Publication date
JPH0586719B2 (enrdf_load_stackoverflow) 1993-12-14

Similar Documents

Publication Publication Date Title
EP0299507B1 (en) Electronic telephone terminal having noise suppression function
US8842851B2 (en) Audio source localization system and method
US6961422B2 (en) Gain control method for acoustic echo cancellation and suppression
CN110838300A (zh) 回声消除的处理方法及处理系统
KR100715139B1 (ko) 마이크로폰의 캘리브레이션을 위한 장치 및 방법
JPH09506220A (ja) 音声品質向上システムおよび方法
JP2007522705A (ja) 音声歪み圧縮システム及びそのフィルター装置
JPH09135194A (ja) 電話装置及び該電話装置により再生される音の品質と明瞭度とを改善する方法
JPH10341190A (ja) エコー消去システム及び方法、並びに移動通信装置
CN108429996A (zh) 有源噪声控制方法、电路及相关设备
JPS5961321A (ja) エコ−信号抑圧装置
JPS6343451A (ja) 拡声通話回路
JPS612496A (ja) ハウリング抑圧装置
JP2894001B2 (ja) 消音装置
JPH1023172A (ja) エコー除去装置
JP2007336132A (ja) エコー抑圧装置
JPH0766756A (ja) 音響エコーキャンセラ
Reas et al. On The Achievable Amplification of the Low Order NLMS Based Adaptive Feedback Canceller for Public Address System
US11290599B1 (en) Accelerometer echo suppression and echo gating during a voice communication session on a headphone device
JP4872794B2 (ja) 音響エコーキャンセラ
JP2843782B2 (ja) 拡声通話装置
JPH0586718B2 (enrdf_load_stackoverflow)
JP3067409B2 (ja) ハウリング防止プロセッサ
JPS6163195A (ja) ハウリング抑圧装置
JPS6097732A (ja) 反響信号除去装置